Touch sensor electrode integrated with polarizing plate

Abstract

The present invention relates to a polarizing-plate-integrated touch-sensing electrode. More specifically, the present invention relates to a polarizing-plate-integrated touch-sensing electrode including at least one sensing pattern disposed on at least one surface of the polarizing plate. The polarizing-plate-integrated touch-sensing electrode may implement a thin-film structure and have excellent visibility.

What is claimed is: 
     
         1 . A polarizing-plate-integrated touch-sensing electrode, comprising at least one sensing pattern disposed on at least one surface of the polarizing plate,
 wherein the differences in refractive index between the polarizing plate and a sensing pattern disposed on one surface of the polarizing plate is 0.8 or less.   
     
     
         2 . The polarizing-plate-integrated touch-sensing electrode of  claim 1 , wherein the polarizing plate is a single-layer polarizer, or a laminate in which a transparent protection film is adhered to at least one surface of the polarizer. 
     
     
         3 . The polarizing-plate-integrated touch-sensing electrode of  claim 2 , wherein the polarizer is a coating layer. 
     
     
         4 . The polarizing-plate-integrated touch-sensing electrode of  claim 2 , wherein when the polarizing plate is a laminate of the polarizer and the protection film, a first sensing pattern and a second sensing pattern are formed on only one surface of the polarizer or the protection film. 
     
     
         5 . The polarizing-plate-integrated touch-sensing electrode of  claim 2 , wherein when the polarizing plate is the laminate of the polarizer and the protection film, a first sensing pattern is formed on one surface of the polarizer and a second sensing pattern is formed on one surface of the protection film. 
     
     
         6 . The polarizing-plate-integrated touch-sensing electrode of  claim 2 , wherein when the polarizing plate is the single-layer polarizer, a first sensing pattern and a second sensing pattern are formed on only one surface of the polarizer. 
     
     
         7 . The polarizing-plate-integrated touch-sensing electrode of  claim 2 , wherein when the polarizing plate is the single-layer polarizer, a first sensing pattern is formed on one surface of the polarizer and a second sensing pattern is formed on the other surface of the polarizer. 
     
     
         8 . The polarizing-plate-integrated touch-sensing electrode of  claim 1 , further comprising:
 first sensing patterns and a second sensing pattern formed on one surface of the polarizing plate;   an insulating layer disposed on the sensing patterns; and   a bridge electrode electrically connecting the first sensing patterns spaced apart from each other, on the insulating layer.   
     
     
         9 . The polarizing-plate-integrated touch-sensing electrode of  claim 1 , further comprising:
 a first sensing pattern disposed on one surface of the polarizing plate; and   a second sensing pattern disposed on the other surface of the polarizing plate,   wherein the polarizing plate provides electrical insulation between the first sensing pattern and the second sensing pattern.   
     
     
         10 . The polarizing-plate-integrated touch-sensing electrode of  claim 1 , wherein the refractive index of the sensing pattern is in the range of 1.3 to 2.5. 
     
     
         11 . A touch screen panel, comprising the polarizing-plate-integrated touch-sensing electrode of  claims 1 . 
     
     
         12 . The touch screen panel of  claim 11 , wherein the polarizing-plate-integrated touch-sensing electrode includes at least one sensing pattern disposed on an upper surface of the polarizing plate, an optical functional film is adhered to the upper surface of the polarizing plate using an adhesive layer, and the difference in refractive index between the adhesive layer and the sensing pattern disposed on the upper surface of the polarizing plate is 0.3 or less. 
     
     
         13 . The touch screen panel of  claim 11 , wherein the polarizing-plate-integrated touch-sensing electrode includes at least one sensing pattern disposed on a lower surface of the polarizing plate, an optical functional film is adhered to the upper surface of the polarizing plate using an adhesive layer, and the difference in refractive index between the adhesive layer and the sensing pattern disposed on a lower surface of the polarizing plate is 0.8 or less. 
     
     
         14 . The touch screen panel of  claim 11 , wherein the polarizing-plate-integrated touch-sensing electrode includes a retarder thereunder. 
     
     
         15 . The touch screen panel of  claim 11 , wherein the touch screen panel is adhered to a flexible display.